Brake rod



Mqy 5, 1931. w. A. GARRIGUSET Al. 1,803,550

, TTTTTT EY May 5, 1 931.- w. A. GARRIGUS TAL 1,803,550

BRAKE ROD Filed Deo. 4, 1929 2 sheets-sneer 2 NvENToR' Patented `Mvayv5, 1931:

Lf' j 1,803,550

'WALTER A] Generous AND noisnnfr ofeAnRIGUs/g or TOLEDO,` OHIO n :BRAKE non Appiicaiinmea December 4, i929.- seriai Na 411,570. 1

This invention relates to lcertain nevv and i useful improvements in draft action apply.

ing mechanisms primarily designed forapplication andfor use inconjuiiction with wthe i `brake rods of vehicle brake-mechanisms to equalizethe clamping".actionof thebands or.' "shoes to obviate sidelsvvay, skidding, locked Whales@ i o Another ob]ect` of the linvention 1consists of a yeldingconnection for each lof `the brake rods whereby movement thereof in excess -to that which is necessary to engage the shoe or bandl with the immediate brake drum vvill be taken upand expanded to advantage upon the Vnext looser brake rod to edect equalization of the `draft action or brake operating mechanism.

An additional object ofthe inventionein-V bodiesran `adjusting element. for .the yieldable brake rod connection normally causing the connection and immediatebrakerodto operate as a unitary structure' in the'appli-` cation of the inimediatebrake; i

More speciiicallystated" he yieldable brake"V rod connections aresuchthatrattling and othe r noises Will be deleted `inwyfievvfofthe constant tension'jexercised uponthe "various clevis tand crank `arm connections and 4the brakes will require but occasional adjustinent` by reasonof 'the effectiveness of the equalization afforded by the connections.

Vith the above and other objects in view, 'he invention further consists of the following novel features and details of construcv5 tion, to be hereinafter more fully described,v

illustrated in the accompanying drawings and pointed out in the appended claims.V

In the drawings y 'Figure 1 is a fragmentary longitudinal l sectional View taken through-a Vmotor-Yvehicle chassis illustrating the relative arrangement ofthe `invention as applied upon afour-` Wheel brake mechanism. p A i v f Figure 2 is a fragmentary top planview y junction with a four-Wheel brake system..`

Figure 3 is a longitudinal sectional vienvv takenV through the invention as disposed in its normal inactive ,or operative position.

Figures 4, 5 and 6 are horizontal sectional r' of the inventionas applied foruse vin con-v vievvstaken on lines l-4, 57-5l and 6-"6 respectively through Figure 3'of the drawings; i `i Figure 7 isran elevation ofthe adjusting element. l l

Figure i 8 is a lViewsimilar to Figure 3 showing the yspring compressed for distances greater" than that ordinarily required for I braking the immediate Wheel andduring the absorption of theexcess draft action andthe distribution lofy same'through the next looser or inactive bra-ke. e y Y Referring to the` drawings in detail Where,-

in like characters ofreference ydenote corre-` spo'ndingparts, the reference character 10 indicates generally thechassisof a motor veliiclehavingfourfwheel brakes either of the internal expanding or" external contracting type, operable in either case bythe distortion of crank arms-11 from the positions shown, A

Arock shaft, indicated as at 12, and jour#` naled terminally thereoffivithin the opposed side rails vof the r"chassis`1O"is .provided at intervalswithpairs of fixedl'yconnected` crank arms V13 and-14; respectively for the front and rear brakes.` "The crank 13 arel to `be connected with the front brakes andV the luppermost crank arms 111 Aareto be con'` nected Vwith theV rearbrakes. "A crankarni 15 alsosfixedly. connectedvvith and upstanding froiii the rock shaftl2ifs` oiii'ed through a connecting rod 16 and clevis yoke connections 17 yand 18 respectively 'to' a brake pedal 19 rockingly mounted upon a stationary shaft I 20 having Vrigidv connection atitsends ywith the inner sides of the opposedfside rails of'V thevehicle chassis.A i y As mentioned in the foregoing, the appli!v poses of fillustrationfare indicated as at 21 and`22'respectivelyljA `tubular housing inember'23having a reduced, closed andl cen trally apertured extremity 24V accommodates, the adjacentpends ofthe rod sections 21` .I am nuts 2 5 carried upon the threaded' pr-v tions of'the rod sections .21"are engageable" with thef"adjacent ends of the extremity 24e. A disk member 261Of relativelythickjproportions adjustablyiniouiited Within thebore cation ofthe"presentffinvention necessitates. A splitting or separatiiigfof the Originalbrake Vrods intomultiple sectionsv'vliiclrfor pur-fV of the housing 23 upon the feeding end of the rod section 21 the latter disposes the rounded extremity 27 therefor Within a correspondingly shaped centrally disposed depression 28 within the disk 26 whereby the disk may be shifted rectilinearly within the housing member Without canting and binding.

The complemental and remaining rod section 22 projecting centrally through a disk member 29 threadedly mounted within the opposite end of the tubular housing 23 carries a nut or bolt head 30 receivable within the pocket portion 31 of a cup-shaped member 32 having an annular flange portion 33 engageable with the adjacent surface of the disk member 26 in the manner suggested in Figure 3 of the drawings.

compression spring, indicated as at 34, encircling that portion of the shaft section 22 disposed within the tubular housingv'member 23 is sprung lat its ends against the adjacent sides of the disk member 29 and the iange portion 33 of the cup-shaped member 32.

As shown, the disk member 29 is provided with openings or sockets 35 eceentrically ar- -ranged upon opposite sides of the central opening therein for the accommodation of the studs or projections upon a spanner wrench, not shown, to facilitate tightening of the spring.A Such tightening action, as mentioned in the foregoing, may be also accomplished by feeding the rod section 21 within the reducedextremity 24of the tubular housing. Such tightening ortensioning-,action is highly desired in view of the fact that the adjusted tension is to be equivalent'to that of thedraft action to be set up upon the immediate brake whereby the brake rods .under ordinary circumstances will work as a onepiece brake rod but upon the occasion of looseness in any one of the other brakes in the system, and upon the exercise of additional 'draft action-upon the brake pedal the disk member 26 and iange 33 will be operated in the manner shown in Figure' 8 of the drawings and such additional stress will be correspondingly delivered to the next looser brake whereby the draft action will be `most effectively equalized. Y

The invention is susceptible of various changes in its form, proportions and minor details of construction, and the right is herein reservedto make such changes asproperly fall within the scope of the appended claims. j

Having described'tlie invention, what is claimed 'is2- y Y l. An'apparatus of the cliara.cte1i"desc1ibed comprising a tubular housing, brake rod sections projected within the ends of the housing, means yieldingly engaging end restraining` outward movement of one of, said brake rod sections, and an adjusting element slidably operable by the remaining brake rod section for cooperation with the yielding means and companion brake rod section.

2. A device of the character described comprising a tubular housing member having a reduced extremity upon one end, brake rod sections extended Within the ends of the housing, a stop carried nponthe inner end of one of the brake rod sections, a spring element encircling the latter mentioned brake rod section and engageable with said stop, a disk carried within the larger end of the tubular housing member and engageable with the adjacent end Aof the spring element, an adjusting element included within the housing engageable with the other side of said stop, and the remaining of the rod sections projected through the reduced extremity having engagement with the adjusting element.

3. A device of the character described comprising a tubular housing member having a reduced extremity, a centrally apertured adjustably mounted disk arranged within the larger end of the housing, brake rod sections having their innermost ends extended axially within the housing and through the reduced extremity and centrally apertured disk respectively, a cup-shaped member carried upon the innermost end of the brake rod section projected through the centrally apertured disk, a compression spring encircling that portion of the latter mentioned brake rod section within the housing and sprung at the opposed end convolutions thereof against the centrally apertured disk and cup-shaped member, an adjusting element carried within the housing and en gageablev with the cup-shaped member, and means establishing 'operative connection between the adjusting element and the remaining of the brake rod sections.

n testimony whereof we aflix our signatures.

WALTER A. GARRIGUS. ROBERT O. GARRIGUS. 

